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Release Notes for HP-UX 11.0 Extension Pack, December 1998: HP 9000 Computers > Chapter 3 Functionality Changes Included in the Integrated
Patch Bundle
Corrected Character Mappings to iconv(1) and iconv(3C) |
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The 11.0 Extension Pack contains defect fixes for incorrect character mappings. The corrections concern the Simplified Chinese, Traditional Chinese, Japanese, and Korean characters of HP-UX. Corrected character converter mappings allow for improved interoperability when sending or receiving converted character data to/from Unicode-aware systems. A patch corrects an incorrect character mapping that occurs when converting between hp15CN and Unicode (UCS2)/UTF-8 for Simplified Chinese. Specifically, the Simplified Chinese character "Double Vertical Line" mapped incorrectly when converting between hp15CN and UCS2/UTF-8. This character was being mapped to the "Parallel To" character, which is a different character. The following table summarizes the change applied to iconv tables:
The hp15CN=ucs2 and ucs2=hp15CN iconv converter tables are affected. These tables are shared by both UCS2 and UTF-8 conversions. No compatibility problems are anticipated. However, if compatibility concerns arise with regard to persistent data stored either in Unicode (UCS2) or UTF-8 on an HP-UX system, it is possible to generate a simple conversion script to search for each occurrence of an incorrect value in either UCS2 or UTF-8 and convert it to the correct value, based on the following mapping:
A patch corrects several incorrect character mappings that occur when converting between Big-5/EUC and Unicode (UCS2)/UTF-8 for Traditional Chinese. In the case of Big-5 to/from UCS2/UTF-8, the "Ideographic Space" character was absent in the Unicode conversion table mapping:
The following table summarizes the changes applied for conversions between eucTW and UCS2:
iconv conversions between eucTW and UCS2 or UTF-8 may be affected. Big-5 conversions with UCS2/UTF-8 are not directly impacted as only a missing table entry has been added. eucTW=ucs2, ucs2=eucTW, big5=ucs2 and ucs2=big5 iconv converter tables are affected. These tables are shared by both UCS2 and UTF-8 conversions. No compatibility problems are anticipated. However, if compatibility concerns arise with regard to persistent data stored either in Unicode (UCS2) or UTF-8 on an HP-UX system, it is possible to generate a simple conversion script to search for each occurrence of an incorrect value in either UCS2 or UTF-8 and convert it to the correct value, based on the following mappings:
A patch corrects four incorrect Japanese character mappings that occur between Shift-JIS/EUC and Unicode (UCS2)/UTF-8. The following table summarizes the changes applied:
Affected iconv conversions are conversions between sjis and UCS2 or UTF-8 as well as conversions between eucJP and UCS2 or UTF-8. sjis=ucs2, ucs2=sjis, eucJP=ucs2 and ucs2=eucJP are the affected iconv conversion tables. These tables are shared by both UCS2 and UTF-8 conversions. No compatibility problems are anticipated. However, if compatibility concerns arise with regard to persistent data stored either in Unicode (UCS2) or UTF-8 on an HP-UX system, it is possible to generate a simple conversion script to search for each occurrence of an incorrect value in either UCS2 or UTF-8 and convert it to the correct value, based on the following mappings:
A patch provides a defect fix to address standards non-conformancy for Korean Unicode (UCS2)/UTF-8 character mappings. The currently supplied Korean iconv converter tables are not conformant to the Unicode 2.0 and ISO-10646 (with 1997 amendments) standards in addition to the Korean national standard, KSC-5700. The current mappings are considered obsolete by all noted standards organizations. The enhancement provides a set of standards-conformant iconv converter tables for converting between eucKR and Unicode/UTF-8. Specifically, the obsolete region of 0x3d2e - 0x4dff has been remapped to the 0xac00 - 0xd7ff region specified in Unicode 2.0 for Hangul. Without this modification, it is impossible to share data with any other system which is standards conformant in adhering to the Unicode 2.0/ISO-10646/KSC-5700 standards. Affected iconv conversions are any conversions between eucKR and UCS2 or UTF-8. The iconv conversion tables affected by this modification are eucKR=ucs2 and ucs2=eucKR. These tables are shared by both UCS2 and UTF-8 conversions. No compatibility problems are anticipated. However, if compatibility concerns arise with regard to persistent data stored either in Unicode (UCS2) or UTF-8 on an HP-UX system, it is recommended that the previously installed ucs2=eucKR table be saved and renamed prior to installation of this fix. Persistent data can then be converted back to eucKR using this old table and then reconverted to the correct Unicode/UTF-8 representation. |
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